Profiling device



c. o. RoTHwElLER 2,449,252'

' PROFILING DEVICE Filed May a, '1945 Sept. 14, 1948.

Fig Z fig Patented Sept. 14,1 1948 `UNITED STATES 'PATENT OFFICE y PROFILING DEVICE Charles Rothweiler, Milwaukee, Wis. Application May 8, 1945, Serial No. 592,661

` (ci. en -13.1)

3 Ciaims. i

My invention relates to improvements in profiling devices, and more particularly to an improvement in a type of pr'oling device described, illustrated and claimed in my patent, Number 2,253,- 095, issued to me under date of August 19, 1941.

The object of my inventionisto provide a stabilizing movement of adjustment oi the table of a proling device, that may beapplied `to any conventional type of milling `machine or the like, without any mechanical changes` ln the construction of the machine, and a means of equalizing the movement of the profiler in either oneror both directions.

Other objects of my invention will present themselves and become more apparent as the description proceeds, especially when reference is made to the accompanying drawings.

Figure 1 is a plan View of the pantograph arrangement of the device, illustrating the top of the movable table to which the workpiece is attached.

Figure 2 is a side view of the device, illustrating the manner in which the base, the auxiliary carriage and the table are adjustably mounted, and showing a gear rack and pinion arrangement for the stabilization of the movement of the table.

Figure 3 is a similar view of the end of the assembly of the base carriage and table.

Similar characters of reference indicate correspending parts throughout the several views, and referring now to the same, the character I shows a base that may be attached to any conventional work table of a machine such as a milling machine. The device has an intermediateportion Il, referred to as an auxiliary carriage, which is slidably mounted to the base I0 and is guided by the rails I2 on the base I0, by means of horizontally mounted rollers I3 resting on the top of the rails I2 and vertically mounted rollers I4 contacting the sides of the rails I2. the auxiliary carriage II, there is a similar arrangement of rollers I5 contacting rails I6 disposed in transverse relation to the rails I2 and mounted onto the bottom of the table top I1. This table top I'I is arranged with a plurality of grooves I8 for fastening the workpiece being fabricated. The arrangement of the base, auxiliary carriage and table top is in a manner to permit lateral and longitudinal movement of the table top I'I. The lateral movement being acquired by contact of the roller assembly I5 on the bottom of the table top I1 with the top of the auxiliary carriage II, while the longitudinal movement is acquired by the contact of the rollers I3 and I4 on the bottom of the auxiliary carriage Il with On the top oi i the top of the base HB3- 2 i The entire unit is actuated bythe pantograph lever I9 connected to the device by the link member 2li.` The micrometer controlled adjustment of the table top being calibrated by means of the graduated scales 2| and 22, respectively. The `end23 of thepantograph lever I9 is employed for tracing and following the pattern and design being worked out.

In the lateral and longitudinal movement of the auxiliary carriage II and table top II, there may at times be unequal pressure exerted in one direction or another, and `to equalize and stabilize the movement, either laterally or longitudinally, I show shafts 2li and 2i mounted on bearings 2li, which bearings are fastened to the upper face of the auxiliary carriage II. The ends of the shafts 24 and 24' are provided with spur gears or pinions 2B which contact gear racks 21, shown mounted on the ends of the lower face on the table top I'I. This construction assures equal movement of both ends of the table top I'I, and a similar arrangement of pinions 26 and racks 2l can be employed between the auxiliary carriage II and the base I0 to insure equalized longitudinal movement of the device.

This gear and rack arrangement does not, n any Way, interfere with the movement of the table top, but does very definitely provide an equalized movement.

In the chosen embodiments of my invention, I show a specific manner in which the movement can be equalized and stabilized. I fully realize that there are many changes that may be made in the general form and configuration di the arrangement,` and changes might suggest themselves without interfering in any way with the spirit of the invention or the scope of the appendent claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent in the United States is:

1. A device of the character described in combination with a pantograph, said device comprising a base, an auxiliary carriage, a table top, said auxiliary carriage disposed between said table top and base, said pantograph attached at one` of its ends to said base and at the other of its ends to said table top, a plurality of ways attached to the top of said base, a plurality of ways attached to the bottom of said table, the ways on said table disposed in angular relation with the ways on said base, sldablemeans on said auxiliary carriage engaging said ways, thereby permitting said table to move in transverse relation to the movement of said auxiliary carriage on said base by means of bination with a pantograph, said? devicelcomprisw ing a base, an auxiliary carriage; a table top, said base having ways disposed within its upper face,`-

said table top having the ways arranged in anguL lar relation to said ways within its bottom`;face;,

said auxiliary carriage disposed between said table top and base, slidable means on'tlie top"of"said auxiliary carriage engaging the? Waysl onf said table top, slidable means on the bottom ofsaid carriage engaging the Ways on the top-ofi said base, said pantograph attached at one of its depen'dnglf ends to said base and*y ati the other" dependiiigenditof-saidi tablevi top; shafts-mounted; on;

bearin'gslattacl'e'd to yi'heftbp face ofi said auxiliany carriagesaid-fsliafts being provided witlfr gears;

gagerrrentf off' saidgears with Ysaliti gearr-acks controlling andequaliaingthe movement ofi"saidii/abiel top bynieans'lof saidipantograpki;`

3': AL device ofthe-'character described-comprising in combination With a pantograph, a base, an auxiliary carriage, a table top, means for guiding said carriage on said base in one direction and guiding said tabletop on said auxiliary carriage in a transverse direction, shafts mounted in bearings supported by the upper face of said carriage, shafts mounted in bearings supported by the upper face of said base, all of said shafts provided With gears, gear racks disposed on the bottom ofsaidtable; and bottom of 'said auxiliary carriage, said 'gear racks arranged forcontact with and in direct alignment With said gears, for controlling and equalizing the movement of said table ti'oponzasaid auxiliary carriage by means of said pantograph and the movement of said auxiliary carriageon'saidi-base.

CHARLES O. ROTHWEILER.

REFERENGES CITED Thel f eHow-ing ref erenoes i arefof P' reeordl in': the file` oi"V this patents` UNLTED STATES.. PATENT5--- Number Name` Bate;

62166Di Halle- Mar;4 21, 1899 898,'-1411 Sawyer Sept".-v 83. 1908: 9723033"y Steers Oats 4i 19u02 

